<?php 
header("Content-type: text/xml"); 
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");

$xml = simplexml_load_file("http://{$_SERVER['SERVER_NAME']}/WebServices/PRC/SubjectAreaList?StudyYear=2011&mode=&category=");
//$xml = str_replace("utf&#x2013;8", "utf-8", $xml);
echo $xml;
?>